Cloning concerns
Scientists working at the Roslin Institute, home of Dolly the sheep, may have discovered why so many cloned animals die before or shortly after birth. The current published success rates are only one or two per cent. Lorraine Young and her colleagues found that manipulating embryos can affect the action...
Comment
A quiet revolution in IVF?
by Juliet Tizzard
For a breakthrough in the treatment of infertility, it came and went by with remarkably little comment. IVF treatment without drugs doesn't sound particularly exciting. It's not a fancy new test or technique or operation. In fact, it's rather old. But if IVF without drugs (or unstimulated IVF) takes off...